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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>video</title>
</head>
<body>
    <video controls width="400" height="600">
        <source  src="./files/kuaishou.mp4" type="video/mp4" />
        <source  src="./files/kuaishou.webm" type="video/webm" />
        <source  src="./files/kuaishou.ogv" type="video/ogv" />
        <source  src="./files/kuaishou.avi" type="video/avi" />
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    </video>
</body>
</html>